CN110207769A - A kind of detectable and amendment data error coil induction type water meter - Google Patents
A kind of detectable and amendment data error coil induction type water meter Download PDFInfo
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- CN110207769A CN110207769A CN201910606720.5A CN201910606720A CN110207769A CN 110207769 A CN110207769 A CN 110207769A CN 201910606720 A CN201910606720 A CN 201910606720A CN 110207769 A CN110207769 A CN 110207769A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
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Abstract
The invention discloses a kind of detectable and amendment data error coil induction type water meters.Whether its method that data error is detected and corrected is the following steps are included: obtaining induced voltage difference data and calculating voltage difference variable, generate segmentation voltage difference sequence vector, calculate the distance between voltage difference sequence vector, judge water meter detection data and need to correct and progress data replacement.Method and system of the invention solve the technical issues of existing coil induction type water meter is unable to error information detection and carries out data correction.
Description
Technical field
The invention belongs to water meter technical fields, more particularly to a kind of detectable and amendment data error coil induction type
Water meter.
Background technique
Water meter measurement is mostly using tongue tube, Hall element, Wiegand sensor, but the machinery intrinsic due to dry reed tube at present
Characteristic, service life and vibration resistance are affected, and Hall element is that electric current is too big, and there is also low or high flow rate frequency responses
Problem；Wiegand sensor haves the shortcomings that magnetic resistance is big, easily adsorbs impeller and increases initial-flow, and is expensive.Therefore existing
Having remote transmitting water meter to use, the principle of coil induction rotates stem-winder gear or the rotation of pointer is converted into electric impulse signal, example
If Chinese patent CN201810125788.7 discloses a kind of no magnetic remote transmitting water meter, patent CN100535603C discloses a kind of sense
Formula angle level sensor is answered, semicircle steel disc (4a) or partially metallised disk are set in the rotation axis (A) of essentic-water-meter
(4), setting external inductor coil (parallel with disk) and to be uniformly arranged on external inductor coil (first above water meter body glass
Grade coil) in 4 inductance coils (2 pairs of secondary coils), as shown in Figure 1, passing through the voltage difference meter for detecting pairs of inductance coil
Measure water flow.
In industrial water, domestic water field, the precise parts such as induction coil and circuit components are collided or the external world
Environmental disturbances, coil induction type water meter can generate Data Detection error, reduce the measuring accuracy of water meter, result even in water meter stream
Meter calculates mistake, brings loss to consumer or water supply side.Therefore it needs one kind to be able to detect data error and carries out data
Modified coil induction type water meter scheme.For this purpose, proposing a kind of detectable and amendment data error coil induction type water meter.
Summary of the invention
Error information detection is unable to the technical problem to be solved by the present invention is to existing coil induction type water meter and is counted
The problem of according to amendment, proposes a kind of detectable and amendment data error coil induction type water meter.
The present invention is using coil induction type water meter described in background technique, including ontology, is mounted in dial plate and dial plate
The non-circle metal plate and the metering module right above non-circle metal plate that interior pointer rotates coaxially；The metering module includes
Single-chip microcontroller and electricity with monolithic mechatronics for the inductance coil of pulse signal transmitting-receiving and for detecting induced electricity pressure difference
Road；The inductance coil includes for the primary coil of pulse signal transmitting and for the multipair secondary wire of pulsed signal
Circle；Single-chip microcontroller calculates water flow according to the induced voltage difference data of each pair of secondary coil of each sampling instant.The present invention is above-mentioned
The program that error information detection is added in single-chip microcontroller and error is modified.
The method that data error is detected and corrected in coil induction type water meter of the invention, comprising the following steps:
Obtain induced voltage difference data and calculate voltage difference variable: the quantity of secondary coil pair is denoted as N, according to setting in advance
The sampling time interval T set0The induced electricity pressure difference for obtaining each secondary coil pair, with variable viIt indicates, wherein i is secondary coil pair
Number, 1≤i≤N；Judge induced electricity pressure difference viWith it is set in advance metering threshold value V size, if vi> V, the then induced voltage
The variable of difference is 1, if vi=V, then the variable of the induced electricity pressure difference is 0, vi< V, then the variable of the induced electricity pressure difference be-
1。
The sampling time interval T set in advance0Time used in rotation half-turn less than non-circle metal plate.
It generates segmentation voltage difference sequence vector: counting the induced electricity pressure difference variable of each secondary coil pair and week is calculated with this
Time value is indicated with variable p；Each period is divided into multistage subcycle, the quantity of subcycle is denoted as m, by subcycle according to the time
Sequencing number is j, 1≤j≤m；Each secondary coil is obtained to the induced electricity pressure difference variable sampled in each subcycle, son week
The quantity of induction voltage difference variable is indicated with variable n in phase, the induced electricity pressure difference variable variable v in each subcycleijkTable
Show, 1≤k≤n；Segmentation voltage difference sequence vector is generated to the induced electricity pressure difference variable in each subcycle according to each secondary coil
aij=(vij1,vij2,…,vijk,…vijn)。
The quantity of the subcycleWherein D is fragmentation threshold set in advance and meets D >=T0；The son
The quantity of induction voltage difference variable in period
It calculates the distance between voltage difference sequence vector: obtaining each in a cycle when water meter set in advance works normally
It is segmented to obtain standard fragmentation voltage difference sequence vector according to subcycle, uses b by the voltage difference sequence vector of secondary coil pairij
It indicates, (for example, the voltage difference sequence vector for each secondary coil pair that water intaking table detects when dispatching from the factory, using the sequence as standard electric
Pressure difference sequence vector), the induced electricity pressure difference variable variable u in standard fragmentation voltage difference sequence vectorijkIt indicates, 1≤k≤
n；Calculate the segmentation voltage difference sequence vector a of each secondary coil pairijWith standard fragmentation voltage difference sequence vector bijBetween away from
From with variable sijIt indicates.
The segmentation voltage difference sequence vector a of each secondary coil pairijWith standard fragmentation voltage difference sequence vector bijBetween
DistanceOr
The segmentation voltage difference sequence vector a of each secondary coil pairijWith standard fragmentation voltage difference sequence vector bijBetween
Distance
Judge whether water meter detection data needs to correct and carry out data replacement: judging distance sijWhether in advance setting is greater than
Distance threshold S, if so, determining its corresponding secondary coil to there are data exceptions, according to the distance s of secondary coil pairij
The deviation value for calculating secondary coil pair, with variable ΦiIt indicates, judges whether there is the deviation value Φ of secondary coil pairiLess than prior
The deviation threshold value L of setting, if so, determining that water meter breaks down at this time, detection data cannot be modified, otherwise determine at this time
Water meter detection data needs to carry out data correction there are error, the segmentation voltage difference vector sequence of the secondary coil by distance greater than S
Arrange aijWith standard fragmentation voltage difference sequence vector bijIt is replaced；If sij< S then determines that there is no miss for water meter detection data at this time
Difference does not need to carry out data correction.
The deviation value of each secondary coil pair
A kind of coil induction type water meter of the invention, comprising:
Water meter body；
One or more processors；
Readable storage medium storing program for executing；And
One or more programs wherein one or more of programs are stored in readable storage medium storing program for executing, and are matched
It is set to and is executed by one or more of processors, described program includes for executing the above method.
Method of the invention has the advantage, that
(1) traditional processing mode is compared, by calculating induced voltage difference data variable and generating voltage difference vector sequence
Column carry out digitlization to the voltage difference data of each secondary coil pair and statistical procedures, computation complexity are low.
(2) by secondary coil to voltage difference sequence vector in different subcycles at a distance from standard sequence and distance
Deviation value can effectively judge that water meter whether there is detection error under the premise of trouble-free, and be counted on this basis
According to amendment.
Detailed description of the invention
Fig. 1 is background technique coil induction type water meter structure figure；
Fig. 2 is the voltage difference variable display figure of two pairs of secondary coils of the embodiment of the present invention one；
Fig. 3 is that the method flow diagram of data error is detected and corrected in the coil induction type water meter of the embodiment of the present invention.
Specific embodiment
It elaborates below to the preferred embodiment of the present invention.
The present invention is using coil induction type water meter described in background technique, including ontology, is mounted in dial plate and dial plate
The non-circle metal plate and the metering module right above non-circle metal plate that interior pointer rotates coaxially；The metering module includes
Single-chip microcontroller and electricity with monolithic mechatronics for the inductance coil of pulse signal transmitting-receiving and for detecting induced electricity pressure difference
Road；The inductance coil includes for the primary coil of pulse signal transmitting and for the multipair secondary wire of pulsed signal
Circle；Single-chip microcontroller calculates water flow according to the induced voltage difference data of each pair of secondary coil of each sampling instant.The embodiment of the present invention
The program that error information detection is added in above-mentioned single-chip microcontroller and error is modified.
Embodiment one, a kind of method that data error is detected and corrected in coil induction type water meter.
In the present embodiment one, non-circle metal plate is the sheet metal of semicircle, and 4 secondary coils are divided into two pairs and are serially connected and instead
It is connected.
The method that data error is detected and corrected in the coil induction type water meter of the present embodiment, comprising the following steps:
Obtain induced voltage difference data and calculate voltage difference variable: the quantity of secondary coil pair is denoted as N, according to setting in advance
The sampling time interval T set0The induced electricity pressure difference for obtaining each secondary coil pair, with variable viIt indicates, wherein i is secondary coil pair
Number, 1≤i≤N；Judge induced electricity pressure difference viWith it is set in advance metering threshold value V size, if vi> V, the then induced voltage
The variable of difference is 1, if vi=V, then the variable of the induced electricity pressure difference is 0, vi< V, then the variable of the induced electricity pressure difference be-
1。
The sampling time interval T set in advance0Time used in rotation half-turn less than non-circle metal plate.This implementation
In example, the logarithm N=2 of secondary coil, it is 1,2 that two pairs of secondary coils are numbered respectively；Sampling time interval T set in advance0=
0.1 second, certain moment obtained the induced voltage difference data of each pair of secondary coil, v1=7 millivolts, v2=10 millivolts, meter set in advance
Threshold value V=5 millivolts of amount, then the induced electricity pressure difference variable of two pairs of secondary coils is 1.
It generates segmentation voltage difference sequence vector: counting the induced electricity pressure difference variable of each secondary coil pair and week is calculated with this
Time value is indicated with variable p；Each period is divided into multistage subcycle, the quantity of subcycle is denoted as m, by subcycle according to the time
Sequencing number is j, 1≤j≤m；Each secondary coil is obtained to the induced electricity pressure difference variable sampled in each subcycle, son week
The quantity of induction voltage difference variable is indicated with variable n in phase, the induced electricity pressure difference variable variable v in each subcycleijkTable
Show, 1≤k≤n；Segmentation voltage difference sequence vector is generated to the induced electricity pressure difference variable in each subcycle according to each secondary coil
aij=(vij1,vij2,…,vijk,…vijn)。
The quantity of the subcycleWherein D is fragmentation threshold set in advance and meets D >=T0；The son
The quantity of induction voltage difference variable in periodIn the present embodiment, the induced electricity pressure difference of each secondary coil pair is counted
Variable obtains two voltage difference variable display figures, as shown in Fig. 2, and with this calculating cycle p=0.8 seconds, it is set in advance
Fragmentation threshold D=0.2, m=0.8/0.2=4, each period were divided into for 4 cross-talk periods, and subcycle is compiled according to chronological order
Number be j, 1≤j≤m；Each secondary coil is obtained to the induced electricity pressure difference variable in every cross-talk period, induced voltage in subcycle
The quantity of poor variable Induced electricity pressure difference variable variable v in each subcycleijkIt indicates, 1≤
K≤2 generate the segmentation voltage difference sequence vector of each secondary coil pair, a with this11=(1,0), a12=(1, -1), a13=(- 1,
0),a14=(1,1), a21=(1,1), a22=(1,1), a23=(- 1, -1), a24=(- 1,0).
It calculates the distance between voltage difference sequence vector: obtaining each in a cycle when water meter set in advance works normally
It is segmented to obtain standard fragmentation voltage difference sequence vector according to subcycle, uses b by the voltage difference sequence vector of secondary coil pairij
It indicates, the induced electricity pressure difference variable variable u in standard fragmentation voltage difference sequence vectorijkIt indicates, 1≤k≤n；It calculates each time
The segmentation voltage difference sequence vector a of grade coil pairijWith standard fragmentation voltage difference sequence vector bijThe distance between, with variable sij
It indicates.
The segmentation voltage difference sequence vector a of each secondary coil pairijWith standard fragmentation voltage difference sequence vector bijBetween
DistanceOr
The segmentation voltage difference sequence vector a of each secondary coil pairijWith standard fragmentation voltage difference sequence vector bijBetween
DistanceIn the present embodiment, the normal work of water meter set in advance
The voltage difference sequence vector of each secondary coil pair is respectively b in a cycle when making1=(1,0, -1, -1, -1,0,1,1), b2=
It is segmented to obtain standard fragmentation voltage difference sequence vector to be b by (1,1,1,0, -1, -1, -1,0) according to subcycle11=(1,0),
b12=(- 1, -1), b13=(- 1,0), b14=(1,1), b21=(1,1), b22=(1,0), b23=(- 1, -1), b24=(- 1,
0)；Calculate distance
Judge whether water meter detection data needs to correct and carry out data replacement: judging distance sijWhether in advance setting is greater than
Distance threshold S, if so, determining its corresponding secondary coil to there are data exceptions, according to the distance s of secondary coil pairij
The deviation value for calculating secondary coil pair, with variable ΦiIt indicates, judges whether there is the deviation value Φ of secondary coil pairiLess than prior
The deviation threshold value L of setting, if so, determining that water meter breaks down at this time, data cannot be modified；Otherwise determine water meter at this time
Detection data needs to carry out data correction there are error, the segmentation voltage difference sequence vector a of the secondary coil by distance greater than Sij
With standard fragmentation voltage difference sequence vector bijIt is replaced；If sij< S then determines that error is not present in water meter detection data at this time,
It does not need to carry out detection data amendment.
The deviation value of each secondary coil pairIn the present embodiment, in advance
The distance threshold S=0.2 of setting, wherein s12=2 > S, s22=1 > S determines two pairs of secondary coils to there is data exception, root
According to the distance s of secondary coil pairijThe deviation value of secondary coil pair is calculated, It is set in advance inclined
From threshold value L=0.1, Φ1> L, Φ2> L determines that water meter detection data needs to carry out detection data amendment there are error at this time, will
s12And s22Voltage difference sequence vector a corresponding to corresponding two pairs of secondary coils12And a22Normal voltage difference vector sequence is used respectively
b12And b22It is replaced, i.e. a12=b12=(- 1, -1), a22=b22=(1,0).
The method flow diagram of data error is detected and corrected in the coil induction type water meter of the present embodiment, as shown in Figure 3.
Embodiment two, a kind of method that data error is detected and corrected in coil induction type water meter.
In the present embodiment two, non-circle metal plate is the sheet metal of semicircle, and 4 secondary coils are divided into two pairs and are serially connected and instead
It is connected.
The method that data error is detected and corrected in the coil induction type water meter of the present embodiment, comprising the following steps:
Obtain induced voltage difference data and calculate voltage difference variable: the quantity of secondary coil pair is denoted as N, according to setting in advance
The sampling time interval T set0The induced electricity pressure difference for obtaining each secondary coil pair, with variable viIt indicates, wherein i is secondary coil pair
Number, 1≤i≤N；Judge induced electricity pressure difference viWith it is set in advance metering threshold value V size, if vi> V, the then induced voltage
The variable of difference is 1, if vi=V, then the variable of the induced electricity pressure difference is 0, vi< V, then the variable of the induced electricity pressure difference be-
1。
The sampling time interval T set in advance0Time used in rotation half-turn less than non-circle metal plate.This implementation
In example, the logarithm N=2 of secondary coil, it is 1,2 that two pairs of secondary coils are numbered respectively；Sampling time interval T set in advance0=
0.1 second, certain moment obtained the induced voltage difference data of each pair of secondary coil, v1=7 millivolts, v2=10 millivolts, meter set in advance
Threshold value V=5 millivolts of amount, then the induced electricity pressure difference variable of two pairs of secondary coils is 1.
It generates segmentation voltage difference sequence vector: counting the induced electricity pressure difference variable of each secondary coil pair and week is calculated with this
Time value is indicated with variable p；Each period is divided into multistage subcycle, the quantity of subcycle is denoted as m, by subcycle according to the time
Sequencing number is j, 1≤j≤m；Each secondary coil is obtained to the induced electricity pressure difference variable sampled in each subcycle, son week
The quantity of induction voltage difference variable is indicated with variable n in phase, the induced electricity pressure difference variable variable v in each subcycleijkTable
Show, 1≤k≤n；Segmentation voltage difference sequence vector is generated to the induced electricity pressure difference variable in each subcycle according to each secondary coil
aij=(vij1,vij2,…,vijk,…vijn)。
The quantity of the subcycleWherein D is fragmentation threshold set in advance and meets D >=T0；The son
The quantity of induction voltage difference variable in periodIn the present embodiment, the induced electricity pressure difference of each secondary coil pair is counted
Variable obtains two voltage difference variable display figures, as shown in Fig. 2, and with this calculating cycle p=0.8 seconds, it is set in advance
Fragmentation threshold D=0.2, m=0.8/0.2=4, each period were divided into for 4 cross-talk periods, and subcycle is compiled according to chronological order
Number be j, 1≤j≤m；Each secondary coil is obtained to the induced electricity pressure difference variable in every cross-talk period, induced voltage in subcycle
The quantity of poor variable Induced electricity pressure difference variable variable v in each subcycleijkIt indicates, 1≤
K≤2 generate the segmentation voltage difference sequence vector of each secondary coil pair, a with this11=(1,0), a12=(1, -1), a13=(- 1,
0),a14=(1,1), a21=(1,1), a22=(1,1), a23=(- 1, -1), a24=(- 1,0).
It calculates the distance between voltage difference sequence vector: obtaining each in a cycle when water meter set in advance works normally
It is segmented to obtain standard fragmentation voltage difference sequence vector according to subcycle, uses b by the voltage difference sequence vector of secondary coil pairij
It indicates, the induced electricity pressure difference variable variable u in standard fragmentation voltage difference sequence vectorijkIt indicates, 1≤k≤n；It calculates each time
The segmentation voltage difference sequence vector a of grade coil pairijWith standard fragmentation voltage difference sequence vector bijThe distance between, with variable sij
It indicates.
The segmentation voltage difference sequence vector a of each secondary coil pairijWith standard fragmentation voltage difference sequence vector bijBetween
DistanceOr
The segmentation voltage difference sequence vector a of each secondary coil pairijWith standard fragmentation voltage difference sequence vector bijBetween
DistanceIn the present embodiment, the normal work of water meter set in advance
The voltage difference sequence vector of each secondary coil pair is respectively b in a cycle when making1=(1,0, -1, -1, -1,0,1,1), b2=
It is segmented to obtain standard fragmentation voltage difference sequence vector to be b by (1,1,1,0, -1, -1, -1,0) according to subcycle11=(1,0),
b12=(- 1, -1), b13=(- 1,0), b14=(1,1), b21=(1,1), b22=(1,0), b23=(- 1, -1), b24=(- 1,
0)；Calculate distance s11=| a11-b11|=| 1-1 |+| 0-0 |=0, s12=| a12-b12|=| 1+1 |+| -1+1 |=2, s13=|
a13-b13|=| -1+1 |+| 0-0 |=0, s14=| a14-b14|=| 1-1 |+| 1-1 |=0, s21=| a21-b21|=| 1-1 |+| 0-
0 |=0, s22=| a22-b22|=| 1-1 |+| 1-0 |=1, s23=| a23-b23|=| -1+1 |+| -1+1 |=0, s24=| a24-b24
|=| -1+1 |+| 0-0 |=0.
Judge whether water meter detection data needs to correct and carry out data replacement: judging distance sijWhether in advance setting is greater than
Distance threshold S, if so, determining its corresponding secondary coil to there are data exceptions, according to the distance s of secondary coil pairij
The deviation value for calculating secondary coil pair, with variable ΦiIt indicates, judges whether there is the deviation value Φ of secondary coil pairiLess than prior
The deviation threshold value L of setting, if so, determining that water meter breaks down at this time, data cannot be modified；Otherwise determine water meter at this time
Detection data needs to carry out data correction there are error, the segmentation voltage difference sequence vector a of the secondary coil by distance greater than Sij
With standard fragmentation voltage difference sequence vector bijIt is replaced；If sij< S then determines that error is not present in water meter detection data at this time,
It does not need to carry out detection data amendment.
The deviation value of each secondary coil pairIn the present embodiment, in advance
The distance threshold S=0.2 of setting, wherein s12=2 > S, s22=1 > S determines two pairs of secondary coils to there is data exception, root
According to the distance s of secondary coil pairijThe deviation value of secondary coil pair is calculated, It is set in advance inclined
From threshold value L=0.1, Φ1> L, Φ2> L determines that water meter detection data needs to carry out detection data amendment there are error at this time, will
s12And s22Voltage difference sequence vector a corresponding to corresponding two pairs of secondary coils12And a22Normal voltage difference vector sequence is used respectively
b12And b22It is replaced, i.e. a12=b12=(- 1, -1), a22=b22=(1,0).
Embodiment three, a kind of method that data error is detected and corrected in coil induction type water meter.
In the present embodiment three, non-circle metal plate is the sheet metal of semicircle, and 6 secondary coils are divided into three pairs and are serially connected and instead
It is connected.
The method that data error is detected and corrected in the coil induction type water meter of the present embodiment, comprising the following steps:
Obtain induced voltage difference data and calculate voltage difference variable: the quantity of secondary coil pair is denoted as N, according to setting in advance
The sampling time interval T set0The induced electricity pressure difference for obtaining each secondary coil pair, with variable viIt indicates, wherein i is secondary coil pair
Number, 1≤i≤N；Judge induced electricity pressure difference viWith it is set in advance metering threshold value V size, if vi> V, the then induced voltage
The variable of difference is 1, if vi=V, then the variable of the induced electricity pressure difference is 0, vi< V, then the variable of the induced electricity pressure difference be-
1。
The sampling time interval T set in advance0Time used in rotation half-turn less than non-circle metal plate.This implementation
In example, the logarithm N=3 of secondary coil, number is 1,2,3 respectively；Sampling time interval T set in advance0=0.1 second, some time
Carve the induced voltage difference data for obtaining each pair of secondary coil, v1=7 millivolts, v2=10 millivolts, v3=1 millivolt, meter set in advance
Threshold value V=5 millivolts of amount, then the induced electricity pressure difference variable of three pairs of secondary coils is respectively 1,1, -1.
It generates segmentation voltage difference sequence vector: counting the induced electricity pressure difference variable of each secondary coil pair and week is calculated with this
Time value is indicated with variable p；Each period is divided into multistage subcycle, the quantity of subcycle is denoted as m, by subcycle according to the time
Sequencing number is j, 1≤j≤m；Each secondary coil is obtained to the induced electricity pressure difference variable sampled in each subcycle, son week
The quantity of induction voltage difference variable is indicated with variable n in phase, the induced electricity pressure difference variable variable v in each subcycleijkTable
Show, 1≤k≤n；Segmentation voltage difference sequence vector is generated to the induced electricity pressure difference variable in each subcycle according to each secondary coil
aij=(vij1,vij2,…,vijk,…vijn)。
The quantity of the subcycleWherein D is fragmentation threshold set in advance and meets D >=T0；The son
The quantity of induction voltage difference variable in periodIn the present embodiment, the induced electricity pressure difference of each secondary coil pair is counted
Variable, and with this calculating cycle p=0.8 seconds, fragmentation threshold D=0.2, m=0.8/0.2=4 set in advance, each period
It was divided into for 4 cross-talk periods, subcycle is numbered according to chronological order as j, 1≤j≤m；Each secondary coil is obtained to every cross-talk
Induced electricity pressure difference variable in period, the quantity of the interior induction voltage difference variable of subcycleRespectively
Induced electricity pressure difference variable variable v in subcycleijkIt indicates, 1≤k≤2, the segmentation electricity of each secondary coil pair is generated with this
Pressure difference sequence vector, a11=(1,0), a12=(1, -1), a13=(- 1,0), a14=(1,1), a21=(1,1), a22=(1,1),
a23=(- 1, -1), a24=(- 1,0), a31=(- 1,1), a32=(0, -1), a33=(1, -1), a34=(0,1).
It calculates the distance between voltage difference sequence vector: obtaining each in a cycle when water meter set in advance works normally
It is segmented to obtain standard fragmentation voltage difference sequence vector according to subcycle, uses b by the voltage difference sequence vector of secondary coil pairij
It indicates, the induced electricity pressure difference variable variable u in standard fragmentation voltage difference sequence vectorijkIt indicates, 1≤k≤n；It calculates each time
The segmentation voltage difference sequence vector a of grade coil pairijWith standard fragmentation voltage difference sequence vector bijThe distance between, with variable sij
It indicates.
The segmentation voltage difference sequence vector a of each secondary coil pairijWith standard fragmentation voltage difference sequence vector bijBetween
DistanceOr
The segmentation voltage difference sequence vector a of each secondary coil pairijWith standard fragmentation voltage difference sequence vector bijBetween
DistanceIn the present embodiment, the normal work of water meter set in advance
The voltage difference sequence vector of each secondary coil pair is respectively b in a cycle when making1=(1,0, -1, -1, -1,0,1,1), b2=
(1,1,1,0, -1, -1, -1,0), b3=(- 1,1,1, -1,1, -1,0,1), it is segmented to obtain standard fragmentation according to subcycle
Voltage difference sequence vector is b11=(1,0), b12=(- 1, -1), b13=(- 1,0), b14=(1,1), b21=(1,1), b22=
(1,0),b23=(- 1, -1), b24=(- 1,0), b31=(- 1,1), b32=(0, -1), b33=(1, -1), b34=(0,1)；Meter
Calculate distance
Judge whether water meter detection data needs to correct and carry out data replacement: judging distance sijWhether in advance setting is greater than
Distance threshold S, if so, determining its corresponding secondary coil to there are data exceptions, according to the distance s of secondary coil pairij
The deviation value for calculating secondary coil pair, with variable ΦiIt indicates, judges whether there is the deviation value Φ of secondary coil pairiLess than prior
The deviation threshold value L of setting, if so, determining that water meter breaks down at this time, data cannot be modified；Otherwise determine water meter at this time
Detection data needs to carry out data correction there are error, the segmentation voltage difference sequence vector a of the secondary coil by distance greater than Sij
With standard fragmentation voltage difference sequence vector bijIt is replaced；If sij< S then determines that error is not present in water meter detection data at this time,
It does not need to carry out detection data amendment.
The deviation value of each secondary coil pairIn the present embodiment, in advance
The distance threshold S=0.2 of setting, wherein s12=2 > S, s22=1 > S determines two pairs of secondary coils to there is data exception, root
According to the distance s of secondary coil pairijThe deviation value of secondary coil pair is calculated, It is set in advance inclined
From threshold value L=0.1, Φ1> L, Φ2> L determines that water meter detection data needs to carry out detection data amendment there are error at this time, will
s12And s22Voltage difference sequence vector a corresponding to corresponding two pairs of secondary coils12And a22Normal voltage difference vector sequence is used respectively
b12And b22It is replaced, i.e. a12=b12=(- 1, -1), a22=b22=(1,0).
A kind of coil induction type water meter of the embodiment of the present invention, comprising:
Water meter body；
One or more processors；
Readable storage medium storing program for executing；And
One or more programs wherein one or more of programs are stored in readable storage medium storing program for executing, and are matched
It is set to and is executed by one or more of processors, described program includes for executing side described in embodiment one or embodiment two
Method.
Certainly, ordinary skill user in the art is it should be appreciated that above embodiments are intended merely to illustrate this hair
It is bright, and be not intended as limitation of the invention, as long as within the scope of the invention, all to the variations of above embodiments, modification
Protection scope of the present invention will be fallen into.
Claims (8)
1. a kind of method that data error is detected and corrected in coil induction type water meter, it is characterised in that the following steps are included:
Obtain magnetic induction voltage difference data and calculate voltage difference variable: the quantity of secondary coil pair is denoted as N, according to prior setting
Sampling time interval T0The induced electricity pressure difference for obtaining each secondary coil pair, with variable viIt indicates, wherein i is secondary coil pair
Number, 1≤i≤N；Judge induced electricity pressure difference viWith it is set in advance metering threshold value V size, if vi> V, then the induced electricity pressure difference
Variable be 1, if vi=V, then the variable of the induced electricity pressure difference is 0, vi< V, then the variable of the induced electricity pressure difference is -1；
It generates segmentation voltage difference sequence vector: counting the induced electricity pressure difference variable of each secondary coil pair and with this calculating cycle
Value, is indicated with variable p；Each period is divided into multistage subcycle, the quantity of subcycle is denoted as m, by subcycle according to time elder generation
Serial number is j, 1≤j≤m afterwards；Each secondary coil is obtained to the induced electricity pressure difference variable sampled in each subcycle, subcycle
It is interior induction voltage difference variable quantity indicated with variable n, the induced electricity pressure difference variable variable v in each subcycleijkTable
Show, 1≤k≤n；Segmentation voltage difference sequence vector is generated to the induced electricity pressure difference variable in each subcycle according to each secondary coil
aij=(vij1,vij2,…,vijk,…vijn)；
Calculate the distance between voltage difference sequence vector: each secondary in a cycle when obtaining water meter set in advance normal work
It is segmented to obtain standard fragmentation voltage difference sequence vector according to subcycle, uses b by the voltage difference sequence vector of coil pairijIt indicates,
Induced electricity pressure difference variable variable u in voltage difference sequence vectorijkIt indicates, 1≤k≤n；Each secondary coil is calculated to dividing
Section voltage difference sequence vector aijWith standard fragmentation voltage difference sequence vector bijThe distance between, with variable sijIt indicates；
Judge whether water meter detection data needs to correct and carry out data replacement: judging distance sijWhether be greater than it is set in advance away from
From threshold value S, if so, determining its corresponding secondary coil to there are data exceptions, according to the distance s of secondary coil pairijIt calculates
The deviation value of secondary coil pair, with variable ΦiIt indicates, judges whether there is the deviation value Φ of secondary coil pairiLess than prior setting
Deviation threshold value L, if so, determining that water meter breaks down at this time, data cannot be modified；Otherwise determine water meter detection at this time
Data need to carry out data correction there are error, the segmentation voltage difference sequence vector a of the secondary coil by distance greater than SijWith mark
Quasi- segmentation voltage difference sequence vector bijIt is replaced.
2. the method that data error is detected and corrected in coil induction type water meter according to claim 1, which is characterized in that institute
State sampling time interval T set in advance0Time used in rotation half-turn less than non-circle metal plate.
3. the method that data error is detected and corrected in coil induction type water meter according to claim 1, which is characterized in that institute
State the quantity of subcycleWherein D is fragmentation threshold set in advance and meets D >=T0。
4. the method that data error is detected and corrected in coil induction type water meter according to claim 3, which is characterized in that institute
State the quantity of induction voltage difference variable in subcycle
5. the method that data error is detected and corrected in coil induction type water meter according to claim 1, which is characterized in that institute
State the segmentation voltage difference sequence vector a of each secondary coil pairijWith standard fragmentation voltage difference sequence vector bijThe distance between
6. the method that data error is detected and corrected in coil induction type water meter according to claim 1, which is characterized in that institute
State the segmentation voltage difference sequence vector a of each secondary coil pairijWith standard fragmentation voltage difference sequence vector bijThe distance between
7. the method that data error is detected and corrected in coil induction type water meter according to claim 1, which is characterized in that institute
State the deviation value of each secondary coil pair
8. a kind of coil induction type water meter, comprising:
Water meter body；
One or more processors；
Readable storage medium storing program for executing；And
One or more programs wherein one or more of programs are stored in readable storage medium storing program for executing, and are configured to
It is executed by one or more of processors, described program includes for executing the method as described in claim 1-7.
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| CN113390475A (en) * | 2021-01-29 | 2021-09-14 | 张军虎 | Multifunctional metering module and rotary metering device |
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